Pumps – Expansible chamber type – Selectively usable plural inlet or outlet distributors for...
Patent
1978-07-06
1980-08-19
Gluck, Richard E.
Pumps
Expansible chamber type
Selectively usable plural inlet or outlet distributors for...
417477, 204195G, F04B 4312, F04B 4508, G01N 2726
Patent
active
042181976
ABSTRACT:
Apparatus for conveying a blood sample through a flow cell which measures characteristics such as pH, PCO.sub.2, and PO.sub.2 of the sample and for pumping a wash solution through the cell between samples. The flow cell inlet is selectively connected (1) to a sample-filled syringe for driving sample through the flow cell or (2) to a reservoir of the wash solution. The flow cell outlet is connected by a conduit to a waste receptacle. A rotor of a combined peristaltic pump and valve coacts with an elastomeric tubular section of the conduit. The rotor and the elastomeric section are movable in a transverse direction relative to each other between (1) a first or pumping position wherein the rotor compressively engages the section for pumping fluid wash solution through the cell and the conduit and (2) a second or relaxed position wherein the rotor is released from the section to provide an open unrestricted channel for the flow of sample driven by the syringe through the cell.
REFERENCES:
patent: 1703361 (1929-02-01), Pohl
patent: 3431864 (1969-03-01), Jones
patent: 3542491 (1970-11-01), Newman
patent: 3628891 (1971-12-01), Isreeli et al.
patent: 3723030 (1973-03-01), Gelfand
patent: 3730650 (1973-05-01), Kling
patent: 3768934 (1973-10-01), Magerle
patent: 3787148 (1974-01-01), Kopf
patent: 3829251 (1974-08-01), Schwing
patent: 3832096 (1974-08-01), Gelfand
patent: 3869354 (1975-03-01), Montalvo
patent: 3997420 (1976-12-01), Buzza
patent: 4070725 (1978-01-01), Austin et al.
Buzza Edmund E.
Meyer Richard C.
Beckman Instruments Inc.
Gluck Richard E.
Meads Robert R.
Shewmaker John R.
Steinmeyer Robert J.
LandOfFree
Combined peristaltic pump and valve flow controller does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Combined peristaltic pump and valve flow controller, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Combined peristaltic pump and valve flow controller will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1425876